CN101480750B - Thermostatic expansion valve power head argon welding device - Google Patents
Thermostatic expansion valve power head argon welding device Download PDFInfo
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- CN101480750B CN101480750B CN2009100956673A CN200910095667A CN101480750B CN 101480750 B CN101480750 B CN 101480750B CN 2009100956673 A CN2009100956673 A CN 2009100956673A CN 200910095667 A CN200910095667 A CN 200910095667A CN 101480750 B CN101480750 B CN 101480750B
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Abstract
The invention discloses an argon welding device for a power head of a thermal expansion valve, comprising a base, a centering clamping mechanism, a work-piece supporting mechanism, a welding gun feeding mechanism, a transmission mechanism and a cooling system, wherein the centering clamping mechanism is arranged on a base plate through an air jaw base, the rotating part of the work-piece supporting mechanism is arranged on a left plate through a bearing support; the moving part of the work-piece support mechanism is arranged on a right plate through an air cylinder, the rotating part and the moving part of the work-piece support mechanism together form the work-piece supporting mechanism; the welding gun feeding mechanism is fixed on an upper connecting rod, the transmission mechanism is arranged on the base plate through a stepping motor seat, and the cooling system adopts the internal cooling mode. Each of the mechanisms is internally provided with an automatic control element. The device is internally provided with an embedded controller therein to achieve the automatic control of argon welding for the power head of the thermal expansion valve. Compared with the conventional welding methods, the invention has the characteristics of convenient installation and clamping of work pieces, high automation, good welding quality, high welding efficiency and good stability.
Description
Technical field
The present invention relates to a kind of thermostatic expansion valve power head argon welding device.
Background technology
Heating power expansion valve is one of four big parts of refrigeration system, is applied in widely in refrigeration systems such as air conditioning for automobiles, central air-conditioning and the refrigeration plant.Heating power expansion valve also is one of a kind of with high content of technology, commodity that added value of product is high in China's exporting, sees Song Jianwei. the structure of automobile air-conditioning heating power expansion valve with select Guangdong highway communication,, the second phase, ISSN 1671-7619 in 1997 for use.The quality of heating power expansion valve is to concern the crucial factor of whole performance of refrigerant systems, and one of main evaluation index of heating power expansion valve quality is the performance of thermostatic expansion valve power head, and thermostatic expansion valve power head argon welding is one of critical process in the manufacturing process of thermostatic expansion valve power head.Therefore thermostatic expansion valve power head argon welding is the manufacturing key technology of heating power expansion valve.Thermostatic expansion valve power head generally is made of last membrane cover, following membrane cover and diaphragm, sees Zhang Jiarui, Gu Qijiang, the research and the improvement of Deng Yonglin .H type automobile air-conditioning heating power expansion valve, Refrigeration ﹠ Air-Conditioning, 2005,5 (5): 69-72.Existing thermostatic expansion valve power head argon welding device generally all adopts empirical method in the centering problem that solves above-mentioned three parts in the axiality problem of welding rotation process and the welding quality control.Promptly utilize the high employee of weld horizontal to carry out welding operation.Nonetheless weld the product that comes out and also need pass through the smooth processing of face of weld, operations such as thermostatic expansion valve power head cleaning just can enter assembling.The process time and the processing cost of product have been increased greatly.Because artificial factor has become the main factor of product processing, the therefore following problem of existing thermostatic expansion valve power head argon welding device ubiquity: 1. automaticity is low; 2. welding quality is dispersed big; 3. shortcoming such as welding efficiency is low is seen Sun Jingrong. argon arc welding technical guide and raising, Chemical Industry Press, on March 1st, 2008.
Summary of the invention
In order to solve the problem that exists in the background, the object of the present invention is to provide a kind of thermostatic expansion valve power head argon welding device, relate in particular to a kind of argon welding device of going up the thermostatic expansion valve power head of membrane cover, following membrane cover and three central portions formations of diaphragm, be particularly suitable for being applied in the automated production process of product.
The present invention solves the scheme that its technical problem adopts:
Comprise base, centering and clamping mechanism, workpiece jacking mechanism, welding gun feed mechanism, transmission mechanism and cooling system; Base wherein: comprise bedplate, left plate, right plate, upper connecting rod and lower connecting rod; Wherein left and right side plate is vertically mounted on the bedplate respectively; Upper and lower connecting rod links to each other with left and right side plate; By gas pawl seat centering and clamping mechanism is installed on the bedplate; The rotating part of workpiece jacking mechanism is installed by bearing block on the left plate; The movable part of workpiece jacking mechanism is installed by cylinder on the right plate; The movable part of the rotating part of workpiece jacking mechanism and workpiece jacking mechanism constitutes the workpiece jacking mechanism together; Fixing welding gun feed mechanism on the upper connecting rod; By the stepper motor seat transmission mechanism is installed on the bedplate; The type of cooling in cooling system adopts.
Described centering and clamping mechanism is the four paws centering and clamping mechanism, comprises gas pawl seat, gas pawl, centering clamping element, flanged pin bearing, roller shaft, packing ring and roller; Gas pawl seat is installed on the bedplate; Gas pawl lower end is fixed on the gas pawl seat; The upper end symmetry of gas pawl is installed the centering clamping element; The upper and lower roller shaft of installing respectively of centering clamping element; Packing ring, flanged pin bearing and roller are installed on the roller shaft successively.
Described workpiece jacking mechanism comprises bearing block, left side axle, end cap, left anchor clamps, right anchor clamps, right axle, support, screw rod, cylinder and single sliding block guide rail; Its bottom bracket is installed on the left plate; Left side axle is installed on the bearing block; Swivel joint, big synchronizing wheel, first deep groove ball bearing, first taper roll bearing, conductive casters and left anchor clamps are installed on the axle of a left side from left to right successively, constitute the rotating part of workpiece jacking mechanism; The single sliding block guide rail is installed on the bedplate, and is parallel with left side axle; Cylinder is installed on the right plate; The support lower end is connected with the single sliding block guide rail, and right-hand member links to each other with cylinder by screw rod; Right axle is installed in internal stent; On the right axle right anchor clamps, second taper roll bearing, second deep groove ball bearing and KSL type being installed successively from left to right connects soon; Constitute the movable part of workpiece jacking mechanism.
Described welding gun feed mechanism comprises two bar cylinders, welding gun anchor clamps connecting plate, welding gun anchor clamps fixture block, welding gun installing rack, clamping plate, connecting axle and welding gun; Wherein welding gun anchor clamps connecting plate is fixed on the upper connecting rod; Connecting axle is fixed on welding gun anchor clamps connecting plate by welding gun anchor clamps fixture block; Two bar cylinders are installed on the connecting axle; The welding gun installing rack is installed on two bar cylinders; Welding gun is installed on the welding gun installing rack by clamping plate.
Described transmission mechanism comprises stepper motor, photoelectric encoder, little synchronizing wheel, driving-belt, stepper motor seat and photoelectric encoder seat; Wherein stepper motor seat and photoelectric encoder seat are installed on the bedplate; Stepper motor is installed on the stepper motor seat; Photoelectric encoder is enclosed within on the axle of stepper motor, and is fixed on the photoelectric encoder seat; Little synchronizing wheel is enclosed within on the axle of stepper motor; Driving-belt connects little synchronizing wheel and big synchronizing wheel.
The present invention compares with background technology, and the benefit ratio that has is:
1. automaticity height.
2. welding quality is good, welding efficiency height and good stability.
3. greatly reduce artificial factor.
4. welding product does not need smooth processing, cleaning surfaces to handle, and has reduced manufacturing procedure, has shortened process time.
5. solved the axiality problem that parts centering and welding process are rotated.
The present invention is particularly suitable for being applied in the automated production process of product.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present invention.
Fig. 2 is the structure chart of transmission mechanism of the present invention and welding gun feed mechanism.
Fig. 3 is the structure chart of centering and clamping mechanism of the present invention.
Fig. 4 is a gas claw portion structure chart of the present invention.
Fig. 5 is that motor of the present invention is installed sketch.
Among the figure: 11, bedplate, 12, left plate, 13, right plate, 14, lower connecting rod, 15, upper connecting rod, 21, gas pawl seat, 22, the gas pawl, 23, the centering clamping element, 24, the flanged pin bearing, 25, roller shaft, 26, packing ring, 27, roller, 31, bearing block, 32, left side axle, 33, end cap, 34, left side anchor clamps, 35, right anchor clamps, 36, right axle, 37, support, 38, screw rod, 39, cylinder, 40, the single sliding block guide rail, 41, first deep groove ball bearing, 42, first taper roll bearing, 43, swivel joint, 44, big synchronizing wheel, 45, conductive casters, 46, electrically conductive graphite, 47, second taper roll bearing, 48, second deep groove ball bearing, 49, the KSL type connects soon, and 51, two bar cylinders, 52, welding gun anchor clamps connecting plate, 53, welding gun anchor clamps fixture block, 54, the welding gun installing rack, 55, clamping plate, 56, connecting axle, 57, welding gun, 61, stepper motor, 62, photoelectric encoder, 63, little synchronizing wheel, 64, driving-belt, 65, the stepper motor seat, 66, the photoelectric encoder seat.
The specific embodiment
As shown in Figure 1, described thermostatic expansion valve power head argon welding device comprises base, centering and clamping mechanism, workpiece jacking mechanism, welding gun feed mechanism, transmission mechanism and cooling system; Base wherein: comprise bedplate 11, left plate 12, right plate 13, upper connecting rod 15 and lower connecting rod 14; Wherein left and right side plate 12,13 is vertically mounted on respectively on the bedplate 11; Upper and lower connecting rod 14,15 links to each other with left and right side plate 12,13; By gas pawl seat 21 centering and clamping mechanism is installed on the bedplate 11; The rotating part of workpiece jacking mechanism is installed by bearing block 31 on the left plate 12; The movable part of workpiece jacking mechanism is installed by cylinder 39 on the right plate 13; The movable part of the rotating part of workpiece jacking mechanism and workpiece jacking mechanism constitutes the workpiece jacking mechanism together; Fixing welding gun feed mechanism on the upper connecting rod 15; By stepper motor seat 65 transmission mechanism is installed on the bedplate 11; The type of cooling in cooling system adopts.
As Fig. 1, Fig. 3, shown in Figure 4, described centering and clamping mechanism is the four paws centering and clamping mechanism, comprises gas pawl seat 21, gas pawl 22, centering clamping element 23, flanged pin bearing 24, roller shaft 25, packing ring 26 and roller 27; Gas pawl seat 21 is installed on the bedplate 11; Gas pawl 22 lower ends are fixed on the gas pawl seat 21; The upper end symmetry of gas pawl 22 is installed centering clamping element 23; The centering clamping element 23 upper and lower roller shafts 25 of installing respectively; Packing ring 26, flanged pin bearing 24 and roller 27 are installed on the roller shaft 25 successively; Roller 27 is monolateral generation flange roller, can prevent to hold out against the phenomenon that causes thermostatic expansion valve power head to tilt in the process at workpiece, has realized the coaxial synchronous rotation of thermostatic expansion valve power head in the welding process.
As shown in Figure 1, described workpiece jacking mechanism comprises bearing block 31, left side axle 32, end cap 33, left anchor clamps 34, right anchor clamps 35, right axle 36, support 37, screw rod 38, cylinder 39 and single sliding block guide rail 40; Its bottom bracket 31 is installed on the left plate 12; Left side axle 32 is installed on the bearing block 31; Swivel joint 43, big synchronizing wheel 44, first deep groove ball bearing 41, first taper roll bearing 42, conductive casters 45 and left anchor clamps 34 are installed on the left side axle 32 from left to right successively, constitute the rotating part of workpiece jacking mechanism; Single sliding block guide rail 40 is installed on the bedplate 11, and is parallel with left side axle 32; Cylinder 39 is installed on the right plate 13; Support 37 lower ends are connected with single sliding block guide rail 40, and right-hand member links to each other with cylinder 39 by screw rod 38; Right axle 36 is installed in support 37 inside; On the right axle 36 right anchor clamps 35, second taper roll bearing 47, second deep groove ball bearing 48 and KSL type are installed successively from left to right and connect 49 soon; Constitute the movable part of workpiece jacking mechanism; On the left side axle 32 first deep groove ball bearing 41 and first taper roll bearing 42 are housed, second deep groove ball bearing 41 and second taper roll bearing 42 are housed on the right axle 36 has increased the stability and the flatness of rotating; Support 37 moves along single sliding block guide rail 40 under the promotion of cylinder 39, guaranteed workpiece jacking mechanism movable part with the same axis of left side axle 32 on move; Conductive casters 45 is installed on the left side axle 32, and closely links together with electrically conductive graphite 31, has guaranteed the reliability of ground connection in the welding rotation process; End cap 33 is installed on the bearing block 31, has played and has strengthened left side axle 32 effects that install and fix, and can prevent that impurity from entering bearing block 31 inside.
As shown in Figure 2, described welding gun feed mechanism comprises two bar cylinders 51, welding gun anchor clamps connecting plate 52, welding gun anchor clamps fixture block 53, welding gun installing rack 54, clamping plate 55, connecting axle 56 and welding gun 57; Wherein welding gun anchor clamps connecting plate 52 is fixed on the upper connecting rod 15; Connecting axle 56 is fixed on welding gun anchor clamps connecting plate 52 by welding gun anchor clamps fixture block 53; Two bar cylinders 51 are installed on the connecting axle 56; Welding gun installing rack 54 is installed on two bar cylinders 51; Welding gun 57 is installed on the welding gun installing rack 54 by clamping plate 55; Welding gun anchor clamps connecting plate 52 is fixed on the upper connecting rod 15, can rotate around upper connecting rod, realizes the adjustable of welding gun feed mechanism feeding angle; Two bar cylinders 51 are installed on the connecting axle 56, by regulating connecting axle 56 in welding gun anchor clamps fixture block 53 fixed positions, can regulate welding gun feed mechanism feeding height; Welding gun installing rack 54 utilizes two bar cylinders 51 to promote, and has increased the stability of welding gun feed mechanism feeding process.
As Fig. 2, shown in Figure 5, described transmission mechanism comprises stepper motor 61, photoelectric encoder 62, little synchronizing wheel 63, driving-belt 64, stepper motor seat 65 and photoelectric encoder seat 66; Wherein stepper motor seat 65 and photoelectric encoder seat 66 are installed on the bedplate 11; Stepper motor 61 is installed on the stepper motor seat 65; Photoelectric encoder 62 is enclosed within on the axle of stepper motor 61, and is fixed on the photoelectric encoder seat 66; Little synchronizing wheel 63 is enclosed within on the axle of stepper motor 61; Driving-belt 64 connects little synchronizing wheel 63 and big synchronizing wheel 44; Stepper motor 61 is furnished with stepper motor driver, can adopt the method that drives segmentation, has increased the flatness that stepper motor rotates; Utilize photoelectric encoder 62, realized the real time monitoring of welding process rotational angle and accurately control.
Described cooling system is an internal cooling system, and wherein left side axle 32, left anchor clamps 34, right anchor clamps 35 and right axle 36 adopt hollow structure; The cooling fluid transfer pipeline adopts big pipe box tubule technology, and connects 49 soon by swivel joint 43 and KSL type and link to each other with thermostatic expansion valve power head argon device; Cooling fluid flows into from tubule and flows out from bassoon; Swivel joint 43 and KSL type connect 49 soon and can prevent to weld in the rotation process, and the cooling fluid transfer pipeline is intertwined; Internal cooling system has overcome in the welding process cooling fluid pollution of unit head has been avoided spraying the influence of cooling fluid to argon shield in the welding process, has improved welding quality.
Embodiment:
1. workpiece is installed.The last membrane cover of the thermostatic expansion valve power head of needs welding is close to the left anchor clamps 34 of workpiece jacking mechanism and is put into thermostatic expansion valve power head argon welding device.
2. centering clamps.Start the gas pawl 22 of centering and clamping mechanism, under the effect of gas pawl 22, the roller 27 on the centering clamping element clamps the thermostatic expansion valve power head that needs welding.
3. workpiece holds out against.Start the cylinder 39 of workpiece jacking mechanism, under the promotion of cylinder 39, support 37 moves along single sliding block guide rail 40, makes right anchor clamps 35 hold out against the workpiece that needs welding together to the close and left anchor clamps 34 of thermostatic expansion valve power head of needs welding.
4. welding gun feeding.Start two bar cylinders 51, two bar cylinders 51 promote the welding gun motion, make arc welding gun head arrive the appropriate location of the thermostatic expansion valve power head circumferential surface that needs welding.
5. welding machine starts.Start argon arc welding machine, finish the starting the arc action of welding.
6. motor rotates.Start stepper motor 61, stepper motor 61 drives the workpiece jacking mechanism by driving-belt 64 and rotates, and realizes the welding of thermostatic expansion valve power head circumferential surface.
7. welding finishes.Thermostatic expansion valve power head stops argon arc welding machine after welding a week, then stops stepper motor 61, unclamps the workpiece jacking mechanism, unloads the thermostatic expansion valve power head that has welded.
Claims (5)
1. thermostatic expansion valve power head argon welding device is characterized in that: comprise base, centering and clamping mechanism, workpiece jacking mechanism, welding gun feed mechanism, transmission mechanism and cooling system; Base wherein: comprise bedplate (11), left plate (12), right plate (13), upper connecting rod (15) and lower connecting rod (14); Wherein left and right side plate (12,13) is vertically mounted on respectively on the bedplate (11); Upper and lower connecting rod (14,15) links to each other with left and right side plate (12,13); Bedplate (11) is gone up and by gas pawl seat (21) centering and clamping mechanism is installed; Left plate (12) is gone up the rotating part that the workpiece jacking mechanism is installed by bearing block (31); Right plate (13) is gone up the movable part that the workpiece jacking mechanism is installed by cylinder (39); The movable part of the rotating part of workpiece jacking mechanism and workpiece jacking mechanism constitutes the workpiece jacking mechanism together; Upper connecting rod (15) is gone up fixedly welding gun feed mechanism; Bedplate (11) is gone up and by stepper motor seat (65) transmission mechanism is installed; The type of cooling in cooling system adopts.
2. thermostatic expansion valve power head argon welding device according to claim 1, it is characterized in that: described centering and clamping mechanism is the four paws centering and clamping mechanism, comprises gas pawl seat (21), gas pawl (22), centering clamping element (23), flanged pin bearing (24), roller shaft (25), packing ring (26) and roller (27); Gas pawl seat (21) is installed on the bedplate (11); Gas pawl (22) lower end is fixed on the gas pawl seat (21); The upper end symmetry of gas pawl (22) is installed centering clamping element (23); The upper and lower roller shaft (25) of installing respectively of centering clamping element (23); Packing ring (26), flanged pin bearing (24) and roller (27) are installed on the roller shaft (25) successively.
3. according to the described thermostatic expansion valve power head argon welding device of claim 1, it is characterized in that: described workpiece jacking mechanism comprises bearing block (31), a left side axle (32), end cap (33), left anchor clamps (34), right anchor clamps (35), right axle (36), support (37), screw rod (38), cylinder (39) and single sliding block guide rail (40); Its bottom bracket (31) is installed on the left plate (12); Left side axle (32) is installed on the bearing block (31); Swivel joint (43), big synchronizing wheel (44), first deep groove ball bearing (41), first taper roll bearing (42), conductive casters (45) and left anchor clamps (34) are installed on the left side axle (32) from left to right successively, constitute the rotating part of workpiece jacking mechanism; Single sliding block guide rail (40) is installed on the bedplate (11), and is parallel with left side axle (32); Cylinder (39) is installed on the right plate (13); Support (37) lower end is connected with single sliding block guide rail (40), and right-hand member links to each other with cylinder (39) by screw rod (38); Right axle (36) is installed in support (37) inside; On the right axle (36) right anchor clamps (35), second taper roll bearing (47), second deep groove ball bearing (48) and KSL type are installed successively from left to right and connect (49) soon; Constitute the movable part of workpiece jacking mechanism.
4. according to the described thermostatic expansion valve power head argon welding device of claim 1, it is characterized in that: described welding gun feed mechanism comprises two bar cylinders (51), welding gun anchor clamps connecting plate (52), welding gun anchor clamps fixture block (53), welding gun installing rack (54), clamping plate (55), connecting axle (56) and welding gun (57); Wherein welding gun anchor clamps connecting plate (52) is fixed on the upper connecting rod (15); Connecting axle (56) is fixed on welding gun anchor clamps connecting plate (52) by welding gun anchor clamps fixture block (53); Two bar cylinders (51) are installed on the connecting axle (56); Welding gun installing rack (54) is installed on two bar cylinders (51); Welding gun (57) is installed on the welding gun installing rack (54) by clamping plate (55).
5. according to the described thermostatic expansion valve power head argon welding device of claim l, it is characterized in that: described transmission mechanism comprises stepper motor (61), photoelectric encoder (62), little synchronizing wheel (63), driving-belt (64), stepper motor seat (65) and photoelectric encoder seat (66); Wherein stepper motor seat (65) and photoelectric encoder seat (66) are installed on the bedplate (11); Stepper motor (61) is installed on the stepper motor seat (65); Photoelectric encoder (62) is enclosed within on the axle of stepper motor (61), and is fixed on the photoelectric encoder seat (66); Little synchronizing wheel (63) is enclosed within on the axle of stepper motor (61); Driving-belt (64) connects little synchronizing wheel (63) and big synchronizing wheel (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100956673A CN101480750B (en) | 2009-01-19 | 2009-01-19 | Thermostatic expansion valve power head argon welding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100956673A CN101480750B (en) | 2009-01-19 | 2009-01-19 | Thermostatic expansion valve power head argon welding device |
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| CN101480750A CN101480750A (en) | 2009-07-15 |
| CN101480750B true CN101480750B (en) | 2011-04-27 |
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| CN2009100956673A Expired - Fee Related CN101480750B (en) | 2009-01-19 | 2009-01-19 | Thermostatic expansion valve power head argon welding device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175482A (en) * | 2011-12-21 | 2013-06-26 | 旭东机械(昆山)有限公司 | Clamping and rotation mechanism for rim |
| CN107627055B (en) * | 2017-11-01 | 2023-08-04 | 烟台东来电气有限公司 | Device for automatic welding |
| CN108274098B (en) * | 2018-02-01 | 2020-04-07 | 吉林工程技术师范学院 | Automatic argon arc welding device for revolving body parts |
| CN113681124A (en) * | 2021-09-13 | 2021-11-23 | 北京清大天达光电科技股份有限公司 | Automatic argon arc welding device and method for special workpiece |
| CN114515974B (en) * | 2022-03-28 | 2024-04-02 | 浙江三田汽车空调压缩机有限公司 | Pneumatic clamp for combined machining of two-way piston type automobile air conditioner compressor cylinder body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3701365A1 (en) * | 1986-01-29 | 1987-08-20 | Diosgyoeri Gepgyar | Clamping and turning device for welding machines, in particular for inert-gas welding machines |
| CN2877949Y (en) * | 2006-03-01 | 2007-03-14 | 谷胜昭 | Welding device for explosion prevention disk |
| CN100436021C (en) * | 2003-12-10 | 2008-11-26 | 上海工程技术大学 | An Automatic built up welding method and equipment |
| CN201342543Y (en) * | 2009-01-19 | 2009-11-11 | 中国计量学院 | Argon-welding device for power head of thermostatic expansion valve |
-
2009
- 2009-01-19 CN CN2009100956673A patent/CN101480750B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3701365A1 (en) * | 1986-01-29 | 1987-08-20 | Diosgyoeri Gepgyar | Clamping and turning device for welding machines, in particular for inert-gas welding machines |
| CN100436021C (en) * | 2003-12-10 | 2008-11-26 | 上海工程技术大学 | An Automatic built up welding method and equipment |
| CN2877949Y (en) * | 2006-03-01 | 2007-03-14 | 谷胜昭 | Welding device for explosion prevention disk |
| CN201342543Y (en) * | 2009-01-19 | 2009-11-11 | 中国计量学院 | Argon-welding device for power head of thermostatic expansion valve |
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Granted publication date: 20110427 Termination date: 20140119 |